The white-browed jungle flycatcher (''Vauriella insignis''), also known as the Luzon jungle-flycatcher and the Rusty-flanked jungle-flycatcher, is a species of bird in the Old World flycatcher family

Muscicapidae The Old World flycatchers are a large family, the Muscicapidae, of small passerine birds restricted to the Old World (Europe, Africa and Asia), with the exception of several vagrants and two species, Bluethroat (''Luscinia svecica)'' and Northe ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

Luzon Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as ...

island, in the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. The natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

of the white-browed jungle flycatcher is tropical moist

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial ...

s. It is threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

. This species was previously placed in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

''Rhinomyias'' but was moved to ''

Vauriella ''Vauriella'' is a genus of birds in the Old World flycatcher family Muscicapidae that occur in Borneo and the Philippines. The species were previously placed in the genus ''Rhinomyias'' but were moved to ''Vauriella'' when a detailed molecular ...

'' when a molecular phylogenetic study published in 2010 found that ''Rhinomyias'' was

polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of conver ...

Description

EBird eBird is an online database of bird observations providing scientists, researchers and amateur naturalists with real-time data about bird distribution and abundance. Originally restricted to sightings from the Western Hemisphere, the project ...

describes the bird as "A medium-sized bird of montane forest in northern Luzon. Large for a flycatcher. Dark brown on the upperparts and chest, rufous on the sides with a white brow, throat, belly, and underside of the base of the tail. Superficially similar to Eyebrowed Thrush, but smaller, lacking the gray throat and yellow base to the bill. Voice consists of thin, high-pitched phrases and a short “shtck!."

Habitat and conservation status

It is found in tropical moist primary

montane Forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial ...

above 950 meters above sea level. It is often found in the

understory In forestry and ecology, understory (American English), or understorey (Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but abo ...

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...

has assessed this bird as vulnerable with the population being estimated at 2,500 to 9,999 mature individuals. This species' main threat is

due o deforestation through

mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...

, logging and conversion of habitat into farmland. Mossy forests of the Cordillera Central are threatened by conversion to agricultural land, primarily for vegetable production. Forest cover in the

Sierra Madre Sierra Madre (Spanish, 'mother mountain range') may refer to: Places and mountains Mexico *Sierra Madre Occidental, a mountain range in northwestern Mexico and southern Arizona *Sierra Madre Oriental, a mountain range in northeastern Mexico *S ...

has declined by 83% since the 1930s. It occurs in a few protected areas like Mount Pulag National Park and Northern Sierra Madre Natural Park but as with most protected areas in the

- protection and enforcement from habitat conversion and logging are lax. Conservation actions proposed include to conduct surveys using mist-nets to determine its current distribution and status. Extend the Northern Sierra Madre Natural Park to incorporate Mt Los Dos Cuernos. Propose further known key sites (i,e.

Mount Polis Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...

) for establishment as formal protected areas. Control habitat degradation in Mount Pulag National Park.

References

white-browed jungle flycatcher Birds of Luzon white-browed jungle flycatcher Taxonomy articles created by Polbot {{Muscicapidae-stub